Java Program to Count Positive Array Numbers

Write a Java Program to count Positive Array Numbers with an example. Or how to write a Java Program to count and return the positive values or items in a given array.

In this Java count positive array numbers example, we used while loop to iterate count_PosArr array and count positive items (number greater than or equal to zero) and prints the same.

package ArrayPrograms;

public class CountPositiveArrayItems0 {
	
	public static void main(String[] args) {
		
		int i = 0, count = 0;
		int[] count_PosArr = {-10, 15, -4, 11, -8, 22, 16, -11, 55, 18, -60};
		
		while(i < count_PosArr.length) 
		{
			if(count_PosArr[i] >= 0) {
				count++;
			}
			i++;
		}
		System.out.println("\nThe Total Number of Positive Items = " + count);
	}
}

Java Program to Count Positive Array Numbers using For Loop

package ArrayPrograms;

import java.util.Scanner;

public class CountPositiveArrayItems1 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		int Size, i, count = 0;
		
		sc = new Scanner(System.in);
		
		System.out.print("\nPlease Enter the CNT POS Array size  : ");
		Size = sc.nextInt();
		int[] count_PosArr = new int[Size];
		
		System.out.format("\nEnter CNT POS Array %d elements : ", Size);
		for(i = 0; i < Size; i++) 
		{
			count_PosArr[i] = sc.nextInt();
		}
	
		for(i = 0; i < Size; i++) 
		{
			if(count_PosArr[i] >= 0) {
				count++;
			}
		}
		System.out.println("\nThe Total Number of Positive Items = " + count);
	}
}

In this count positive array items Java example, we created a separate function CountPositiveElement to count and return positive array items.

package ArrayPrograms;

import java.util.Scanner;

public class CountPositiveArrayItems2 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		int Size, i;
		
		sc = new Scanner(System.in);
		
		System.out.print("\nPlease Enter the CNT POS Array size  : ");
		Size = sc.nextInt();
		int[] count_PosArr = new int[Size];
		
		System.out.format("\nEnter CNT POS Array %d elements : ", Size);
		for(i = 0; i < Size; i++) 
		{
			count_PosArr[i] = sc.nextInt();
		}
	
		int count = CountPositiveElement(count_PosArr, Size );
		
		System.out.println("\nThe Total Number of Positive Items = " + count);
	}
	
	public static int CountPositiveElement(int[] count_PosArr, int size ) {
		int i, count = 0;
		
		for(i = 0; i < size; i++) 
		{
			if(count_PosArr[i] >= 0) {
				count++;
			}
		}
		return count;
	}
}